I was considering that when Horde3D was released but I think at the moment the project and the community are still too small to have a real advantage from such things. They just mean additional administrative overhead for me and keep me away from coding.
So for now you can use the forums for reporting bugs (there is separate section) and requesting features. I'm also posting regularly updates to my roadmap so that people can see what is coming next.
When everything grows I will think about it again